US5132412A - Thiazoleazo dyes having a diazo component from the isothiazole or thiadiazole series - Google Patents
Thiazoleazo dyes having a diazo component from the isothiazole or thiadiazole series Download PDFInfo
- Publication number
- US5132412A US5132412A US07/407,748 US40774889A US5132412A US 5132412 A US5132412 A US 5132412A US 40774889 A US40774889 A US 40774889A US 5132412 A US5132412 A US 5132412A
- Authority
- US
- United States
- Prior art keywords
- sub
- och
- formula
- unsubstituted
- violet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/34—Monoazo dyes prepared by diazotising and coupling from other coupling components
- C09B29/36—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds
- C09B29/3691—Monoazo dyes prepared by diazotising and coupling from other coupling components from heterocyclic compounds containing nitrogen and sulfur as heteroatom
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/0025—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds
- C09B29/0074—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing nitrogen and sulfur as heteroatoms
- C09B29/0077—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing nitrogen and sulfur as heteroatoms containing a five-membered heterocyclic ring with one nitrogen and one sulfur as heteroatoms
- C09B29/0085—Thiazoles or condensed thiazoles
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B29/00—Monoazo dyes prepared by diazotising and coupling
- C09B29/0025—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds
- C09B29/0074—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing nitrogen and sulfur as heteroatoms
- C09B29/0092—Monoazo dyes prepared by diazotising and coupling from diazotized amino heterocyclic compounds the heterocyclic ring containing nitrogen and sulfur as heteroatoms containing a five-membered heterocyclic ring with two nitrogen and one sulfur as heteroatoms
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/16—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using dispersed, e.g. acetate, dyestuffs
- D06P1/18—Azo dyes
Definitions
- the present invention relates to novel thiazoleazo dyes of the formula I ##STR2## where X is nitrogen or a radical C--R 5 , R 5 being cyano, halogen, C 1 -C 4 -alkoxycarbonyl or thiocyanato, R 1 is cyano, chlorine, unsubstituted or substituted C 1 -C 6 -alkyl, a radical of the formula Y(CH 2 ) m S(O) p --, Y being hydrogen, cyano or C 1 -C 4 -alkoxycarbonyl, m being 1 or 2 and p being 0, 1 or 2, a radical of the formula R 6 (--OC 2 H 4 ) n , R 6 being C 1 -C 6 -alkyl, C 5 -C 7 -cycloalkyl, benzyl or phenyl and n being 1, 2, 3 or 4, unsubstituted or substituted phenyl, thienyl, C 1
- R 4 is C 1 -C 6 -alkyl or C 3 -C 12 -alkyl whose alkyl chain is interrupted by from 1 to 4 oxygen atoms and may be substituted by phenyl or phenoxy, or C 1 -C 4 -alkoxy and R 4 is C 1 -C 6 -alkyl or C 3 -C 12 -alkyl whose alkyl chain is interrupted by from 1 to 4 oxygen atoms and may be substituted by phenyl or phenoxy, or R 3 and R 4 , together with the nitrogen atom which links them, form a 5-membered or 6-membered saturated heterocyclic radical which may contain further heteroatoms, with the proviso that R 3 and R 4 are simultaneously C 1 -C 6 -alkyl only when R 1 has one or more oxygen atoms or is a radical NC(CH 2 ) m S(O) p --, m and p each having the abovementioned meanings, and
- DE-A-2 910 806 and JP-A-151 653/1982 disclose azo dyes which have a thiazole derivative as a coupling component. Furthermore, earlier patent applications DE-A-3 810 643 and DE-A-3 816 698 disclose thiazoleazo dyes having a diazo component from the isothiazole series.
- R 1 , R 2 , R 3 and R 4 are, for example, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, pentyl, isopentyl, neopentyl, tert-pentyl, hexyl or isohexyl.
- R 1 is furthermore, for example, CH 3 OC 2 H 4 , C 2 H 5 OC 2 H 4 , C 6 H 5 CH 2 OC 2 H 4 , C 6 H 5 OC 2 H 4 , CH 6 H 11 OC 2 H 4 , CH 3 (OC 2 H 4 ) 2 , C 2 H 5 (OC 2 H 4 ) 2 , C 6 H 5 (OC 2 H 4 ) 2 , C 6 H 5 (OC 2 H 4 ) 2 , C 6 H 11 (OC 2 H 4 ) 2 , CH 3 (OC 2 H 4 ) 3 , C 2 H 5 (OC 2 H 4 ) 3 , C 6 H 5 CH 2 (OC 2 H 4 ) 3 , C 6 H 5 (OC 2 H 4 ) 3 , C 6 H 11 (OC 2 H 4 ) 3 , CH 3 (OC 2 H 4 ) 4 , C 2 H 5 (OC 2 H 4 ) 4 , C 6 H 5 CH 2 (OC 2 H 4 ) 4 , C 6 H 11 (OC 2 H 4
- R 2 is furthermore, for example, cyclopentyl, cyclohexyl, 2-, 3- or 4-methylcyclohexyl, cycloheptyl, phenoxymethyl, 2-phenoxyethyl, 2- or 3-phenoxypropyl, 2- or 4-phenoxybutyl, heptyl, octyl or 2-ethylhexyl.
- R 1 is substituted C 1 -C 6 -alkyl
- suitable substituents are, for example, C 1 -C 4 -alkoxy, phenoxy, phenyl which may be substituted by C 1 -C 4 -alkyl, halogen, in particular fluorine, chlorine or bromine or C 1 -C 4 -alkoxy, or are C 1 -C 4 -mono- or dialkylcarbamoyl, pyrrolidinocarbonyl, piperidinocarbonyl, morpholinocarbonyl, piperazinocarbonyl, N-(C 1 -C 4 -alkyl)-piperazinocarbonyl, phenylthio, phenylsulfonyl, anilino, C 1 -C 4 -alkanoylamino, benzoylamino, N-(C 1 -C 4 -alkyl)-N-(C 1 -C 4 -alkanoyl)-
- R 1 is furthermore, for example, phenyl which is unsubstituted or substituted by C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, halogen, in particular fluorine, chlorine or bromine, hydroxyl, phenoxy, phenylthio, phenylsulfonyl, C 1 -C 4 -alkoxycarbonyl, C 1 -C 4 -hydroxyalkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -(pyrrolidino)-, -(piperidino)-, -(morpholino)-, -(piperazino)- or -[N-(C 1 -C 4 -alkyl)-piperazinoalkyl], C 1 -C 4 -phenylalkoxy, C 1 -C 4 -dialkylsulfamoyl or C 1 -C 4 -alkanoylamino
- R 1 or R 2 is substituted phenyl
- suitable substituents are, for example, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, cyano, halogen, in particular chlorine or bromine, C 1 -C 4 -alkanoylamino, sulfamoyl and C 1 -C 4 -mono- and dialkylsulfamoyl, where the alkyl chain may be interrupted by an oxygen atom.
- R 5 is, for example, fluorine, chlorine, bromine, methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, isopropoxycarbonyl or butoxycarbonyl.
- R 3 and R 4 together with the nitrogen atom which links them are, for example, pyrrolidino, piperidino, morpholino, thiomorpholino, piperazino or N-(C 1 -C 4 -alkyl)piperazino, such as N-methyl- or N-ethylpiperazino.
- R 3 and R 4 are furthermore, for example, 2-methoxyethyl, 2-ethoxyethyl, 2-propoxyethyl, 2-isopropoxyethyl, 2-butoxyethyl, 2- or 3-methoxypropyl, 2- or 3-ethoxypropyl, 2- or 3-propoxypropyl, 2- or 3-butoxypropyl, 2- or 4-methoxybutyl, 2- or 4-ethoxybutyl, 2- or 4-propoxybutyl, 2- or 4-butoxybutyl, 3,6-dioxaheptyl, 3,6-dioxaoctyl, 4,8-dioxanonyl, 3,7-dioxaoctyl, 3,7-dioxanonyl, 4,7-dioxaoctyl, 4,7-dioxanonyl, 4,8-dioxadecyl, 3,6,9-trioxadecyl, 1,3,6,9-
- R 3 is furthermore, for example, 2-cyanoethyl or 1- or 2-phenylethyl.
- Preferred thiazoleazo dyes of the formula I are those in which X is a radical C--R 5 , where R 5 has the abovementioned meanings.
- Particularly preferred thiazoleazo dyes of the formula I are those in which X is a radical C--R 5 , where R 5 is cyano.
- Particularly preferred thiazoleazo dyes of the formula I are those in which R 1 is unsubstituted or substituted phenyl or a radical of the formula R 6 (--OC 2 H 4 ) n , where R 6 is C 1 -C 4 -alkyl, cyclohexyl, benzyl or phenyl and n is 1, 2 or 3, R 2 is cyclohexyl, unsubstituted or methoxy substituted phenyl or thienyl, R 3 is C 1 -C 4 -alkyl, R 4 is C 3 -C 9 -alkyl whose alkyl chain is interrupted by from 1 to 3 oxygen atoms and may be substituted by phenoxy, and X is C--CN.
- thiazoleazo dyes of the formula I are those in which R 1 is unsubstituted or substituted phenyl or a radical of the formula R 6 (--OC 2 H 4 ) n , where R 6 is phenyl and n is 2.
- thiazoleazo dyes of the formula I are those in which R 4 is C 1 - or C 2 -alkoxyethyl, C 1 - or C 2 -alkoxypropyl, 3,6-dioxaheptyl, 3,6-dioxaoctyl, 4,7-dioxaoctyl, 4,7-dioxanonyl or 6-phenoxy-4-oxahexyl.
- novel thiazoleazo dyes are prepared in a conventional manner.
- a 5-aminoisothiazole derivative of the formula ##STR4## where R 1 and R 5 each have the abovementioned meanings, or a 5-aminothiadiazole derivative of the formula III ##STR5## where R 1 has the abovementioned meanings can be diazotized and the product coupled with a thiazole of the formula IV ##STR6## where R 2 , R 3 and R 4 each have the abovementioned meanings.
- 5-Aminoisothiazoles of the formula II are known and are described in, for example, earlier patent application DE-A-3 804 394, and can be obtained by a method similar to the preparation process described there.
- 5-Aminothiadiazoles of the formula III are likewise known and are described in, for example, R. C. Elderfield, Heterocyclic Compounds, Vol. 7, John Wiley, New York, 1961, and can be obtained by a method similar to the methods stated there.
- the thiazoles of the formula IV are in general also known compounds. They are described, for example, in U.S. Pat. No. 3 770 719 or in J. V. Metzger, Heterocyclic Compounds --Thiazole and its Derivatives, Vol. 34, Part 1, Interscience Publ., John Wiley, New York, 1979, or can be obtained by a method similar to the methods stated there.
- novel dyes of the formula I which have 5 or more oxygen atoms in the radicals R 3 and R 4 together are in the liquid state at room temperature.
- novel thiazoleazo dyes of the formula I can advantageously be used as disperse dyes for dyeing textile fibers, in particular cellulose esters or polyesters, as well as polyamides or blended fabrics of polyesters and cellulose fibers.
- Example 2 The procedure described in Example 1 was followed; except that, instead of thiophene-2-carbonyl chloride, 170 g of benzoyl chloride were used. 240 g of the coupling component of the formula ##STR8## were obtained as a viscous, greenish oil, which rapidly solidified to give a colorless, crystalline product of melting point 47° C.
- a mixture of 200 g of glacial acetic acid, 50 g of propionic acid and 20 g of 96% strength by weight sulfuric acid was stirred at room temperature with 15 g of finely milled 3-methylthio-5-aminothiadiazole. It was then cooled to 1°-3° C., 32 g of 42% strength by weight nitrosylsulfuric acid were added dropwise at this temperature while cooling, and stirring was continued for 2.5 hours at from 0° to 5° C.
- the dye dyes polyester fabric in strong bluish violet hues having good lightfastness and fastness to heat-setting.
- the dye dissolves in N,N-dimethylformamide to give a bluish red solution and dyes polyester fabric in lightfast, bluish red hues.
- the absorption maximum measured in a mixture of N,N-dimethylformamide and glacial acetic acid (9 : 1 v/v), is 526 nm.
- the resulting dye of the formula ##STR76## was precipitated with water and was isolated similarly to Example 1. 42 g of a dark red powder were obtained, the said powder dissolving in N,N-dimethylformamide to give a pale bluish red solution and dyeing polyester fabric in bluish red hues having very good fastness properties.
- the UV spectrum has a virtually symmetric curve in the visible spectral range. The absorption maximum is 525 nm.
- the diazonium salt solution was then run into a solution of 25.0 g of the coupling component of the formula ##STR77## in 160 ml of glacial acetic acid and 40 ml of propionic acid. The solution was cooled to 2°-4° C. After the addition of the diazonium salt, the dye of the formula ##STR78## was obtained. The dye was precipitated by adding water. After the mixture had been buffered at pH 0-0.5 with sodium hydroxide solution, the dye was isolated by filtration under suction, washing with water and drying. 39.6 g of a bluish black powder were obtained, the said powder dissolving in N,N-dimethylformamide to give a reddish blue solution. The absorption maximum, measured in a mixture of N,N-dimethylformamide and glacial acetic acid (9 : 1 v/v), is 577 nm.
- the dye dyes polyester fabric in reddish blue to navy hues.
- polyester fibers Because of its good affinity to polyester fibers, it is also suitable for (sublimation) transfer printing.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Coloring (AREA)
- Plural Heterocyclic Compounds (AREA)
Abstract
Thiazoleazo dyes of the formula ##STR1## where X is nitrogen or a radical C--R5, R5 being cyano, halogen, alkoxycarbonyl or thiocyanato, R1 is cyano, chlorine, unsubstituted or substituted C1 -C6 -alkyl, unsubstituted or substituted phenyl, unsubstituted or substituted thienyl, unsubstituted or substituted pyridyl or unsubstituted or substituted alkylthio, alkylsulfinyl or alkylsulfonyl, R2 is unsubstituted or substituted alkyl, cycloalkyl, unsubstituted or substituted phenyl, furyl, unsubstituted or substituted thienyl or pyridyl and R3 and R4 independently of one another are each unsubstituted or substituted alkyl, or R3 and R4, together with the nitrogen atom which links them, form a heterocyclic radical, are used for dyeing textile fibers having good wet fastness and color build-up.
Description
The present invention relates to novel thiazoleazo dyes of the formula I ##STR2## where X is nitrogen or a radical C--R5, R5 being cyano, halogen, C1 -C4 -alkoxycarbonyl or thiocyanato, R1 is cyano, chlorine, unsubstituted or substituted C1 -C6 -alkyl, a radical of the formula Y(CH2)m S(O)p --, Y being hydrogen, cyano or C1 -C4 -alkoxycarbonyl, m being 1 or 2 and p being 0, 1 or 2, a radical of the formula R6 (--OC2 H4)n, R6 being C1 -C6 -alkyl, C5 -C7 -cycloalkyl, benzyl or phenyl and n being 1, 2, 3 or 4, unsubstituted or substituted phenyl, thienyl, C1 -C4 -alkylthienyl, pyridyl or C1 -C4 -alkylpyridyl, R2 is C1 -C8 -alkyl, phenoxy-substituted C1 -C4 -alkyl, C5 -C7 -cycloalkyl, unsubstituted or substituted phenyl, furyl, thienyl, C1 -C4 -alkylthienyl, halothienyl or pyridyl, R3 is C1 -C6 -alkyl, C.sub. 1 -C6 -alkyl which is substituted by cyano or phenyl, C3 -C12 -alkyl whose alkyl chain is interrupted by from 1 to 4 oxygen atoms and may be substituted by phenyl or phenoxy, or C1 -C4 -alkoxy and R4 is C1 -C6 -alkyl or C3 -C12 -alkyl whose alkyl chain is interrupted by from 1 to 4 oxygen atoms and may be substituted by phenyl or phenoxy, or R3 and R4, together with the nitrogen atom which links them, form a 5-membered or 6-membered saturated heterocyclic radical which may contain further heteroatoms, with the proviso that R3 and R4 are simultaneously C1 -C6 -alkyl only when R1 has one or more oxygen atoms or is a radical NC(CH2)m S(O)p --, m and p each having the abovementioned meanings, and their use for dyeing textile fibers.
DE-A-2 910 806 and JP-A-151 653/1982 disclose azo dyes which have a thiazole derivative as a coupling component. Furthermore, earlier patent applications DE-A-3 810 643 and DE-A-3 816 698 disclose thiazoleazo dyes having a diazo component from the isothiazole series.
It is an object of the present invention to provide novel thiazoleazo dyes which have a diazo component from the isothiazole or thiadiazole series and possess advantageous performance characteristics.
We have found that this object is achieved by the thiazoleazo dyes of the formula I which are defined in detail above.
All alkyl groups occurring in the abovementioned formula I may be either straight-chain or branched.
R1, R2, R3 and R4 are, for example, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, pentyl, isopentyl, neopentyl, tert-pentyl, hexyl or isohexyl.
R1 is furthermore, for example, CH3 OC2 H4, C2 H5 OC2 H4, C6 H5 CH2 OC2 H4, C6 H5 OC2 H4, CH6 H11 OC2 H4, CH3 (OC2 H4)2, C2 H5 (OC2 H4)2, C6 H5 (OC2 H4)2, C6 H5 (OC2 H4)2, C6 H11 (OC2 H4)2, CH3 (OC2 H4)3, C2 H5 (OC2 H4)3, C6 H5 CH2 (OC2 H4)3, C6 H5 (OC2 H4)3, C6 H11 (OC2 H4)3, CH3 (OC2 H4)4, C2 H5 (OC2 H4)4, C6 H5 CH2 (OC2 H4)4, C6 H5 (OC2 H4)4 or C6 H11 (OC2 H4)4.
R2 is furthermore, for example, cyclopentyl, cyclohexyl, 2-, 3- or 4-methylcyclohexyl, cycloheptyl, phenoxymethyl, 2-phenoxyethyl, 2- or 3-phenoxypropyl, 2- or 4-phenoxybutyl, heptyl, octyl or 2-ethylhexyl.
If R1 is substituted C1 -C6 -alkyl, suitable substituents are, for example, C1 -C4 -alkoxy, phenoxy, phenyl which may be substituted by C1 -C4 -alkyl, halogen, in particular fluorine, chlorine or bromine or C1 -C4 -alkoxy, or are C1 -C4 -mono- or dialkylcarbamoyl, pyrrolidinocarbonyl, piperidinocarbonyl, morpholinocarbonyl, piperazinocarbonyl, N-(C1 -C4 -alkyl)-piperazinocarbonyl, phenylthio, phenylsulfonyl, anilino, C1 -C4 -alkanoylamino, benzoylamino, N-(C1 -C4 -alkyl)-N-(C1 -C4 -alkanoyl)-amino, N-(C5 -C7 -cycloalkyl)-N-(C1 -C4 -alkanoyl)-amino, N-phenyl-N-(C1 -C4 -alkanoyl)-amino,N-(C1 -C4 -alkyl)-N-benzoylamino,N-phenylN-benzoylamino, phenylsulfonylamino, N-(C1 -C4 -alkyl)-N-phenylsulfonylamino, N-phenyl-N-phenylsulfonylamino, N,N'-(C1 -C4 -dialkyl)-ureido, N-phenyl-N'-(C1 -C4 -alkyl)ureido, N,N'-diphenylureido, morpholino or a radical of the formula ##STR3##
R1 is furthermore, for example, phenyl which is unsubstituted or substituted by C1 -C4 -alkyl, C1 -C4 -alkoxy, halogen, in particular fluorine, chlorine or bromine, hydroxyl, phenoxy, phenylthio, phenylsulfonyl, C1 -C4 -alkoxycarbonyl, C1 -C4 -hydroxyalkyl, C1 -C4 -haloalkyl, C1 -C4 -(pyrrolidino)-, -(piperidino)-, -(morpholino)-, -(piperazino)- or -[N-(C1 -C4 -alkyl)-piperazinoalkyl], C1 -C4 -phenylalkoxy, C1 -C4 -dialkylsulfamoyl or C1 -C4 -alkanoylamino, or is styryl which is unsubstituted or substituted by C1 -C4 -dialkylamino, or is methylthio, ethylthio, 2-(methoxycarbonyl)-ethylthio, 2-(ethoxycarbonyl)-ethylthio, 2cyanoethylthio, methylsulfinyl, ethylsulfinyl, 2-(methoxycarbonyl)-ethylsulfinyl, 2-(ethoxycarbonyl)ethylsulfinyl, 2-cyanoethylsulfinyl, methylsulfonyl, ethylsulfonyl, 2-(methoxycarbonyl)-ethylsulfonyl, 2-(ethoxycarbonyl)-ethylsulfonyl or 2-cyanoethylsulfonyl.
If R1 or R2 is substituted phenyl, suitable substituents are, for example, C1 -C4 -alkyl, C1 -C4 -alkoxy, cyano, halogen, in particular chlorine or bromine, C1 -C4 -alkanoylamino, sulfamoyl and C1 -C4 -mono- and dialkylsulfamoyl, where the alkyl chain may be interrupted by an oxygen atom.
R5 is, for example, fluorine, chlorine, bromine, methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, isopropoxycarbonyl or butoxycarbonyl.
R3 and R4 together with the nitrogen atom which links them, are, for example, pyrrolidino, piperidino, morpholino, thiomorpholino, piperazino or N-(C1 -C4 -alkyl)piperazino, such as N-methyl- or N-ethylpiperazino.
R3 and R4 are furthermore, for example, 2-methoxyethyl, 2-ethoxyethyl, 2-propoxyethyl, 2-isopropoxyethyl, 2-butoxyethyl, 2- or 3-methoxypropyl, 2- or 3-ethoxypropyl, 2- or 3-propoxypropyl, 2- or 3-butoxypropyl, 2- or 4-methoxybutyl, 2- or 4-ethoxybutyl, 2- or 4-propoxybutyl, 2- or 4-butoxybutyl, 3,6-dioxaheptyl, 3,6-dioxaoctyl, 4,8-dioxanonyl, 3,7-dioxaoctyl, 3,7-dioxanonyl, 4,7-dioxaoctyl, 4,7-dioxanonyl, 4,8-dioxadecyl, 3,6,9-trioxadecyl, 1,3,6,9-trioxaundecy1,3,6,9,12-tetraoxatridecyl, 3,6,9,12-tetraoxatetradecyl, 3-benzyloxypropyl or 6-phenoxy-4-oxahexyl.
R3 is furthermore, for example, 2-cyanoethyl or 1- or 2-phenylethyl.
Preferred thiazoleazo dyes of the formula I are those in which X is a radical C--R5, where R5 has the abovementioned meanings.
Particularly preferred thiazoleazo dyes of the formula I are those in which X is a radical C--R5, where R5 is cyano.
Particularly preferred thiazoleazo dyes of the formula I are those in which R1 is unsubstituted or substituted phenyl or a radical of the formula R6 (--OC2 H4)n, where R6 is C1 -C4 -alkyl, cyclohexyl, benzyl or phenyl and n is 1, 2 or 3, R2 is cyclohexyl, unsubstituted or methoxy substituted phenyl or thienyl, R3 is C1 -C4 -alkyl, R4 is C3 -C9 -alkyl whose alkyl chain is interrupted by from 1 to 3 oxygen atoms and may be substituted by phenoxy, and X is C--CN.
Particularly noteworthy thiazoleazo dyes of the formula I are those in which R1 is unsubstituted or substituted phenyl or a radical of the formula R6 (--OC2 H4)n, where R6 is phenyl and n is 2.
Further particularly noteworthy thiazoleazo dyes of the formula I are those in which R4 is C1 - or C2 -alkoxyethyl, C1 - or C2 -alkoxypropyl, 3,6-dioxaheptyl, 3,6-dioxaoctyl, 4,7-dioxaoctyl, 4,7-dioxanonyl or 6-phenoxy-4-oxahexyl.
The novel thiazoleazo dyes are prepared in a conventional manner. For example, a 5-aminoisothiazole derivative of the formula ##STR4## where R1 and R5 each have the abovementioned meanings, or a 5-aminothiadiazole derivative of the formula III ##STR5## where R1 has the abovementioned meanings, can be diazotized and the product coupled with a thiazole of the formula IV ##STR6## where R2, R3 and R4 each have the abovementioned meanings.
5-Aminoisothiazoles of the formula II are known and are described in, for example, earlier patent application DE-A-3 804 394, and can be obtained by a method similar to the preparation process described there.
5-Aminothiadiazoles of the formula III are likewise known and are described in, for example, R. C. Elderfield, Heterocyclic Compounds, Vol. 7, John Wiley, New York, 1961, and can be obtained by a method similar to the methods stated there.
The thiazoles of the formula IV are in general also known compounds. They are described, for example, in U.S. Pat. No. 3 770 719 or in J. V. Metzger, Heterocyclic Compounds --Thiazole and its Derivatives, Vol. 34, Part 1, Interscience Publ., John Wiley, New York, 1979, or can be obtained by a method similar to the methods stated there.
The Examples give further details on the preparation of the novel dyes.
In general, the novel dyes of the formula I which have 5 or more oxygen atoms in the radicals R3 and R4 together are in the liquid state at room temperature.
The novel thiazoleazo dyes of the formula I can advantageously be used as disperse dyes for dyeing textile fibers, in particular cellulose esters or polyesters, as well as polyamides or blended fabrics of polyesters and cellulose fibers.
Dyeings having good wetfastness are obtained
To achieve an advantageous build-up of color, it may be advantageous in some cases to use mixtures of the novel dyes of formula I for dyeing.
The Examples which follow illustrate the invention. Examples 1 and 2 describe the preparation of the coupling component.
98 g of sodium thiocyanate were added to 300 ml of toluene, 100 ml of water and 5 g of a phase transfer catalyst. Thereafter, 181 g of thiophene-2-carbonyl chloride were added dropwise in the course of 1 hour and the mixture was stirred for 5 hours at from 20° to 25° C. The pH of the suspension was kept at 6-7. 168 g of bis(2-methoxyethyl)-amine were then added dropwise at from 20° to 25° C. in the course of 1 hour, after which the pH was corrected to 7-7.5 and stirring was continued overnight. 350 ml of water and 200 g of sodium hydroxide solution (50% by weight) were then added, and 124 g of chloroacetic acid were introduced at not more than 40° C. The mixture was then stirred for 5 hours with evaporative cooling. After the end of CO2 elimination, the aqueous phase was separated off and the organic phase was extracted twice by shaking with water. The organic phase was subjected to distillation under reduced pressure (bath temperature: not more than 155° C.). 250 g of the coupling component of the formula ##STR7## were obtained as a brown oil.
The procedure described in Example 1 was followed; except that, instead of thiophene-2-carbonyl chloride, 170 g of benzoyl chloride were used. 240 g of the coupling component of the formula ##STR8## were obtained as a viscous, greenish oil, which rapidly solidified to give a colorless, crystalline product of melting point 47° C.
13.8 g of 3-(2-methoxyethyl)-4-cyano-5-aminoisothiazole were dissolved in 160 ml of glacial acetic acid and 35 ml of propionic acid. The solution was then cooled to 0°-5° C., and 32 g of 42% strength by weight nitrosylsulfuric acid were added dropwise at this temperature, and stirring was carried out for 3 hours. The mixture was then poured into a solution of 29.7 g of the thiazole of the formula ##STR9## and 200 g of glacial acetic acid, 40 g of propionic acid and 30 ml of aqueous 10% strength by weight amidosulfonic acid solution. The mixture was then cooled to 0°-5° C. The coupling reaction took place immediately. The mixture was kept stirrable by adding about 800 ml of ice water and 200 g of ice. After the mixture had been buffered at pH 0-0.5 with sodium acetate, the precipitated dye of the formula ##STR10## was filtered off under suction, washed with water and dried to give 47 g of a dark red to violet powder which dissolves in N,N-dimethylformamide to give a reddish blue solution and dyes polyethylene terephthalate fabric in reddish blue to navy hues.
λmax 580 nm (9 : 1 v/v N,N-dimethylformamide/ glacial acetic acid).
13.8 g of 3-(2-methoxy-ethyl)-4-cyano-5-aminoisothiazole were diazotized similarly to Example 3 and the product was coupled with 27.9 g of the thiazole of the formula ##STR11## to give 48 g of a dark red powder of the formula ##STR12## which dissolves in acetone to give a violet solution and dyes polyethylene terephthalate fabric in violet hues with excellent lightfastness. The dye has very good build-up properties.
λmax : 554 nm (9 : 1 v/v N,N-dimethylformamide/ glacial acetic acid).
17.2 g of 3-methyl-4-thiocyanato-5-aminoisothiazole were dissolved in 220 g of glacial acetic acid and 48 g of propionic acid at about 45° C. The solution was then cooled to 0°-5° C., 32 g of 42% strength by weight nitrosylsulfuric acid were added at this temperature and stirring was carried out for 3.5 hours at from 0° to 5° C. The resulting solution was added to a mixture of 29.2 g of 2-bis-(2-methoxyethyl)-amino-4-phenylthiazole, 50 g of glacial acetic acid and 10 g of an aqueous 10% strength by weight amidosulfonic acid solution. 8 g of concentrated hydrochloric acid and 400 g of ice water were also added and the mixture was cooled to 0° C. with ice. The coupling mixture was buffered at pH 0.8-1 with dilute sodium acetate solution. The precipitated dye of the formula ##STR13## was filtered off under suction, washed and dried to give 42 g of a reddish violet powder which dissolves in N,N-dimethylformamide to give a violet solution and dyes polyethylene terephthalate in strong dull bluish red to violet hues.
λmax : 542 nm (9 : 1 v/v N,N-dimethylformamide/ glacial acetic acid).
20.7 g of 3-(thien-3-yl)-4-cyano-5-aminoisothiazole were sprinkled into a mixture of 125 g of sulfuric acid (71% strength by weight), 22 g of glacial acetic acid and 32 g of nitrosylsulfuric acid (42% strength by weight), cooled to 0° C. The diazotization mixture was stirred for 4 hours at from 0° to 5° C., and a yellow suspension was obtained. This mixture was combined at <8° C. with a solution, cooled to 0°-5° C., of 42.4 g of the thiazole of the formula ##STR14## in 300 g of glacial acetic acid, 50 g of propionic acid, 50 g of ice and 1 g of amidosulfonic acid. During introduction of the diazonium salt, a little ice and ice water were added simultaneously so that the mixture remained stirrable. Stirring was continued for 10 minutes at about 0° C., after which the mixture was buffered at pH 0.2-0.4 with dilute, ice-cold sodium hydroxide solution. The dye of the formula ##STR15## was isolated similarly to Example 5. It dissolves in N,N-dimethylformamide to give a solution having a navy hue and dyes polyethylene terephthalate in strong, blue hues. λmax : 588 nm (9 : 1 v/v N,N-dimethylformamide/ glacial acetic acid).
The dyes listed in Tables 1 to 4 below are obtained in a similar manner.
TABLE 1
__________________________________________________________________________
##STR16##
Example
No. R.sup.1
R.sup.2
R.sup.3
R.sup.4 Hue
__________________________________________________________________________
7 C.sub.6 H.sub.5
C.sub.6 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
(C.sub.2 H.sub.4 O).sub.2 OCH.sub.3
violet
8 C.sub.2 H.sub.5 OC.sub.2 H.sub.4
C.sub.6 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
bluish red
9 C.sub.6 H.sub.5
C.sub.6 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
violet
10 C.sub.6 H.sub.5
C.sub.6 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
violet
11 C.sub.6 H.sub.5
C.sub. 6 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
(C.sub.2 H.sub.4 O).sub.3 CH.sub.3
violet
12 C.sub.6 H.sub.5
##STR17##
C.sub.3 H.sub.6 OCH.sub.3
(C.sub.2 H.sub.4 O).sub.2 CH.sub.3
reddish blue
13 C.sub.6 H.sub.5
##STR18##
C.sub.3 H.sub.6 OCH.sub.3
(C.sub.2 H.sub.4 O).sub.3 CH.sub.3
reddish blue
14 C.sub.6 H.sub.5
##STR19##
C.sub.2 H.sub.5
(C.sub.2 H.sub.4 O).sub.3 CH.sub.3
reddish blue
15 C.sub.6 H.sub.5
##STR20##
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
reddish blue
16 C.sub.6 H.sub.5
##STR21##
C.sub.3 H.sub.7 (n)
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
reddish blue
17
##STR22##
##STR23##
C.sub.2 H.sub.5
(C.sub.2 H.sub.4 O).sub.3 CH.sub.3
blue
18
##STR24##
##STR25##
C.sub.2 H.sub.4 OCH.sub.3
(C.sub.2 H.sub.4 O).sub.2 CH.sub.3
reddish blue
19
##STR26##
##STR27##
C.sub.2 H.sub.4 OCH.sub.3
(C.sub.2 H.sub.4 O).sub.3 CH.sub.3
reddish blue
20
##STR28##
##STR29##
C.sub.2 H.sub.4 OCH.sub.3
(C.sub.2 H.sub.4 O).sub.3 CH.sub.3
reddish blue
21
##STR30##
##STR31##
C.sub.2 H.sub.4 OCH.sub.3
(C.sub.2 H.sub.4 O).sub.2 CH.sub.3
blue
22
##STR32##
##STR33##
C.sub.2 H.sub.5
(C.sub.2 H.sub.4 O).sub.2 CH.sub.3
blue
23
##STR34##
##STR35##
C.sub.2 H.sub.5
(C.sub.2 H.sub.4 O).sub.3 CH.sub.3
blue
24
##STR36##
##STR37##
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
blue
25 (CH.sub.3).sub.2 CH
##STR38##
C.sub.3 H.sub.7 (n)
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
navy
26 C.sub.2 H.sub.5 OC.sub.2 H.sub.4
##STR39##
C.sub.3 H.sub.7 (n)
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
navy
__________________________________________________________________________
TABLE 2
__________________________________________________________________________
##STR40##
Example No.
R.sup.1
R.sup.3
R.sup.4 R.sup.5
Hue
__________________________________________________________________________
27 CH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
CN reddish blue
28 C.sub.2 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
CN reddish blue
29 C.sub.3 H.sub.7 (n)
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
CN reddish blue
30 (CH.sub.3).sub.2 CH
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
CN reddish blue
31 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.4 OCH.sub.3
C.sub.3 H.sub.6 OCH.sub.3
CN navy
32 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.4 OCH.sub.3
C.sub.3 H.sub.6 OC.sub.2 H.sub.5
CN navy
33 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.4 OC.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.5
CN navy
34 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.4 OC.sub.2 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
CN navy
35 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
CN navy
36 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
CN navy
37 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OC.sub.2 H.sub.5
CN navy
38 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.5
(C.sub.2 H.sub.4 O).sub.2 CH.sub.3
CN navy
39 CH.sub.3 OC.sub.2 H.sub.4
C.sub.3 H.sub.7 (n)
(C.sub.2 H.sub.4 O).sub.2 CH.sub.3
CN navy
40 CH.sub.3 OC.sub.2 H.sub.4
C.sub.3 H.sub.7 (n)
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
CN navy
41 CH.sub.3
C.sub.2 H.sub. 5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
SCN bluish violet
42 CH.sub.3
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
SCN bluish violet
43 CH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
SCN bluish violet
__________________________________________________________________________
TABLE 3
__________________________________________________________________________
##STR41##
Example No.
R.sup.1
R.sup.3
R.sup.4 Z Hue
__________________________________________________________________________
44 CH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
H violet
45 C.sub.2 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
H violet
46 (CH.sub.3).sub.2 CH
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
H violet
47 CH.sub.3 OC.sub.2 H.sub.4
C.sub.3 H.sub.6 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
H violet
48 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
Cl violet
49 CH.sub.3 OC.sub.2 H.sub.4
C.sub.3 H.sub.6 OCH.sub.3
C.sub.2 H.sub.5
H violet
50 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.5
C.sub.2 H.sub.4 OC.sub.2 H.sub.4 OCH.sub.3
H violet
51 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.5
C.sub.2 H.sub.4 OC.sub.2 H.sub.4 OCH.sub.3
Cl violet
52 CH.sub.3 OC.sub.2 H.sub.4
CH.sub.3
C.sub.2 H.sub.4 OC.sub.2 H.sub.4 OCH.sub.3
H violet
53 CH.sub.3 OC.sub.2 H.sub.4
C.sub.3 H.sub.6 OC.sub.2 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
H violet
54 CH.sub.3 OC.sub.2 H.sub.4
C.sub.3 H.sub.6 OC.sub.2 H.sub.5
CH.sub.3 H violet
55 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
OCH.sub.3
bluish violet
56 CH.sub.3
C.sub.2 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
OCH.sub.3
bluish violet
__________________________________________________________________________
TABLE 4
__________________________________________________________________________
##STR42##
Example
No. R.sup.1 R.sup.2
R.sup.3
R.sup.4 R.sup.5
Hue
__________________________________________________________________________
44 CH.sub.3 C.sub.6 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
H red
45 CH.sub.3 C.sub.6 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
Cl red
46 CH.sub.3 C.sub.6 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
Br red
47 CH.sub.3 C.sub.6 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
SCN violet
48 CH.sub.3 C.sub.6 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
SCN violet
49 C.sub.6 H.sub.5
C.sub.6 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
CN violet
50 C.sub.6 H.sub.5
##STR43##
C.sub.3 H.sub.6 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
CN reddish blue
51 C.sub.6 H.sub.5
##STR44##
C.sub.3 H.sub.6 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
SCN reddish blue
52 CH.sub.3
##STR45##
C.sub.3 H.sub.6 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
SCN reddish blue
53 CH.sub.3
##STR46##
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
SCN violet
54
##STR47##
##STR48##
C.sub.3 H.sub.6 OCH.sub.3
(C.sub.2 H.sub.4 O).sub.2 C.sub.2 H.sub.5
CN reddish blue
55 C.sub.6 H.sub.5
##STR49##
C.sub.3 H.sub.6 OCH.sub.3
(C.sub.2 H.sub. 4 O).sub.2 C.sub.2 H.sub.5
CN reddish blue
56 C.sub.6 H.sub.5CH.sub.2
C.sub.6 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
(C.sub.2 H.sub.4 O).sub.2 C.sub.2 H.sub.5
CN violet
57 CH.sub.3 OC.sub.2 H.sub.4
##STR50##
C.sub.3 H.sub.6 OCH.sub.3
C.sub.3 H.sub.6 OCH.sub.3
CN navy
58 C.sub.2 H.sub.5 OC.sub.2 H.sub.4
##STR51##
C.sub.3 H.sub.6 OCH.sub.3
C.sub.3 H.sub.6 OCH.sub.3
CN navy
59 C.sub.2 H.sub.5 OC.sub.2 H.sub.4
##STR52##
C.sub.3 H.sub.6 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
CN navy
60
##STR53##
##STR54##
C.sub.3 H.sub.6 OC.sub.2 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
CN reddish blue
61
##STR55##
##STR56##
C.sub.2 H.sub.4 OC.sub.2 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
CN blue
62
##STR57##
##STR58##
C.sub.3 H.sub.6 OCH.sub.3
C.sub.3 H.sub.6 OC.sub.2 H.sub.5
CN blue
__________________________________________________________________________
A mixture of 200 g of glacial acetic acid, 50 g of propionic acid and 20 g of 96% strength by weight sulfuric acid was stirred at room temperature with 15 g of finely milled 3-methylthio-5-aminothiadiazole. It was then cooled to 1°-3° C., 32 g of 42% strength by weight nitrosylsulfuric acid were added dropwise at this temperature while cooling, and stirring was continued for 2.5 hours at from 0° to 5° C. The resulting, orange diazonium salt solution was added to a solution of 31.2 g of the thiazole of the formula ##STR59## in 35 g of glacial acetic acid, which was diluted with a mixture of 8 ml of concentrated hydrochloric acid, 300 ml of water and 1 g of amidosulfonic acid and cooled with ice to 0° C. Coupling took place completely at pH<0.8. The pH of the coupling mixture was increased to 0.3-0.5 with dilute sodium hydroxide solution and stirring was continued for 1 hour, and the precipitate was filtered off under suction, washed and dried. 46.5 g of a violet dye of the formula ##STR60## which dissolves in N,N-dimethylformamide to give a reddish blue solution were obtained
λmax : 568 nm (9 : 1 v/v N,N-dimethylformamide/ glacial acetic acid).
The dye dyes polyester fabric in strong bluish violet hues having good lightfastness and fastness to heat-setting.
The dyes listed in Table 5 below are obtained in a similar manner.
TABLE 5
__________________________________________________________________________
##STR61##
Example No.
R.sup.1 R.sup.2 R.sup.3
R.sup.4 Hue
__________________________________________________________________________
64 SCH.sub.3
C.sub.6 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
reddish violet
65 SCH.sub.3
##STR62## C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
reddish blue
66 SC.sub.2 H.sub.5
##STR63## C.sub.3 H.sub.6 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
reddish blue
67 SCH.sub.3
##STR64## C.sub.3 H.sub.6 OCH.sub.3
C.sub.3 H.sub.6 OCH.sub.3
reddish blue
68 SCH.sub.3
C.sub.6 H.sub.5
C.sub. 3 H.sub.6 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
violet
69 SCH.sub.3
##STR65## C.sub.3 H.sub.6 OCH.sub.3
C.sub.3 H.sub.6 OCH.sub.3
bluish violet
70 SCH.sub.3
##STR66## C.sub.3 H.sub.6 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
violet
71 SCH.sub.3
C.sub.6 H.sub.5
C.sub.2 H.sub.5
(C.sub.2 H.sub.4 O).sub.2 CH.sub.3
violet
72 SCH.sub.3
C.sub.6 H.sub.5
C.sub.2 H.sub.5
(C.sub.2 H.sub.4 O).sub.2 C.sub.2
H.sub.5 violet
73 SCH.sub.3
##STR67## C.sub.2 H.sub.5
(C.sub.2 H.sub.4 O).sub.2 C.sub.2
H.sub.5 bluish violet
74 SCH.sub.3
##STR68## C.sub.2 H.sub.5
(C.sub.2 H.sub.4 O).sub.2 CH.sub.3
bluish violet
75 SCH.sub.3
##STR69## C.sub.3 H.sub.6 OCH.sub.3
(C.sub.2 H.sub.4 O).sub.2 C.sub.2
H.sub.5 bluish violet
76 SCH.sub.3
##STR70## C.sub.2 H.sub.4 OC.sub.2 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
bluish violet
77 CH.sub.3 O.sub.2 CC.sub.2 H.sub.4 S
##STR71## C.sub.2 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
bluish violet
78 CH.sub.3 O.sub.2 CC.sub.2 H.sub.4 S
C.sub.6 H.sub.5
C.sub.6 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
violet
79 CH.sub.3 O.sub.2 CC.sub.2 H.sub.4 S
##STR72## C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.5
bluish violet
__________________________________________________________________________
13.9 g of 3-methyl-4-cyano-5-aminoisothiazole were dissolved in a mixture of 210 ml of glacial acetic acid and 50 ml of propionic acid at 50° C. The solution was then cooled to 10° C., after which 14 g of concentrated sulfuric acid and then, at from 0° to 4° C., 32 g of nitrosylsulfuric acid (45% strength by weight) were added dropwise. The mixture was stirred for 3 hours at from 0° to 5° C., after which a clear diazonium salt solution was obtained. This was run, with thorough stirring, into 30 g of the coupling component of the formula ##STR73## dissolved in a mixture, cooled to 0°-5° C., of 150 g of glacial acetic acid, 40 g of propionic acid and 0.5 g of urea. During this procedure, the temperature was kept at ≦5° C. by cooling. Thereafter, the mixture was buffered by adding sodium acetate at ≦5° C. in such a way that the free sulfuric acid was bound (pH of the mixture about 0.5-1.5). The resulting dye of the formula ##STR74## was precipitated by adding water, filtered off under suction, washed and dried. Yield: 43 g.
The dye dissolves in N,N-dimethylformamide to give a bluish red solution and dyes polyester fabric in lightfast, bluish red hues. The absorption maximum, measured in a mixture of N,N-dimethylformamide and glacial acetic acid (9 : 1 v/v), is 526 nm.
13.9 g of 3-methyl-4-cyano-5-aminoisothiazole were diazotized similarly to Example 80 and the product was combined with 29 g of the coupling component of the formula ##STR75## which had been dissolved in a mixture of 150 g of glacial acetic acid and 40 g of propionic acid at 2° C. Thereafter, 35 g of dry sodium acetate were sprinkled in while stirring and cooling at ≦6° C., the coupling reaction being initiated.
After the end of the reaction, the resulting dye of the formula ##STR76## was precipitated with water and was isolated similarly to Example 1. 42 g of a dark red powder were obtained, the said powder dissolving in N,N-dimethylformamide to give a pale bluish red solution and dyeing polyester fabric in bluish red hues having very good fastness properties. The UV spectrum has a virtually symmetric curve in the visible spectral range. The absorption maximum is 525 nm.
13.9 g of 3-methyl-4-cyano-5-aminoisothiazole were dissolved at 50° C. in a mixture of 210 ml of glacial acetic acid and 50 ml of propionic acid. The solution was then cooled to 10° C., and 14 g of concentrated sulfuric acid (96% strength by weight) were added dropwise. Thereafter, the suspension was cooled to 2°-4° C. and 32 g of nitrosylsulfuric acid (44% strength by weight) were added dropwise at this temperature. After stirring had been carried out for 3 hours, a clear diazonium salt solution was obtained. Excess nitrous acid was then destroyed with urea. The diazonium salt solution was then run into a solution of 25.0 g of the coupling component of the formula ##STR77## in 160 ml of glacial acetic acid and 40 ml of propionic acid. The solution was cooled to 2°-4° C. After the addition of the diazonium salt, the dye of the formula ##STR78## was obtained. The dye was precipitated by adding water. After the mixture had been buffered at pH 0-0.5 with sodium hydroxide solution, the dye was isolated by filtration under suction, washing with water and drying. 39.6 g of a bluish black powder were obtained, the said powder dissolving in N,N-dimethylformamide to give a reddish blue solution. The absorption maximum, measured in a mixture of N,N-dimethylformamide and glacial acetic acid (9 : 1 v/v), is 577 nm.
The dye dyes polyester fabric in reddish blue to navy hues.
Because of its good affinity to polyester fibers, it is also suitable for (sublimation) transfer printing.
The dyes listed in Tables 6, 7 and 8 below are obtained in a similar manner.
TABLE 6
__________________________________________________________________________
##STR79##
Example No.
R.sup.1 R.sup.5
R.sup.2 R.sup.3
R.sup.4 Hue
__________________________________________________________________________
83 CH.sub.3 SCN
##STR80##
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
red
84 CH.sub.3 CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
bluish red
85 CH.sub.3 CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
bluish red
86 CH.sub.3 CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4
OCH.sub.3 bluish red
87 C.sub.2 H.sub.5
CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4
OCH.sub.3 bluish red
88 C.sub.3 H.sub.5
CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
C.sub.2 H.sub.4 OCH.sub.3
bluish red
89 C.sub.2 H.sub.5
CN
##STR81##
C.sub.2 H.sub.4 OCH.sub.3
C.sub.3 H.sub.6 OC.sub.2 H.sub.4
OCH.sub.3 bluish red
90 CH.sub.3 CN
##STR82##
C.sub.2 H.sub.4 OCH.sub.3
C.sub.3 H.sub.6 OC.sub.2 H.sub.4
OCH.sub.3 bluish red
91 CH.sub.3 Cl
##STR83##
C.sub.2 H.sub.4 OCH.sub.3
C.sub.3 H.sub.6 OC.sub.2 H.sub.4
OCH.sub.3 yellowish red
92 CH.sub.3 Br
##STR84##
C.sub.2 H.sub.4 OCH.sub.3
C.sub.3 H.sub.6 OC.sub.2 H.sub.4
OCH.sub.3 yellowish red
93 C.sub.6 H.sub.5
CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub. 4
OCH.sub.3 bluish red
94
##STR85## CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4
OCH.sub.3 bluish red
95 CH.sub.3 OC.sub.2 H.sub.4
CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4
OCH.sub.3 bluish red
96 CH.sub.3 OC.sub.2 H.sub.4
CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
bluish red
97 CH.sub.3 OC.sub.2 H.sub.4
CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
bluish red
98 CH.sub.3 (OC.sub.2 H.sub.4).sub.2
CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.2 H.sub.5
bluish red
99 C.sub.2 H.sub.5 (OC.sub.2 H.sub.4).sub.2
CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.2 H.sub.5
bluish red
100 C.sub.2 H.sub.5 (OC.sub.2 H.sub.4).sub.2
CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub. 3 H.sub.6 OCH.sub.3
bluish red
101
##STR86## CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.2 H.sub.5
bluish red
102
##STR87## CN CH.sub.2 OC.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
bluish red
103 CH.sub.3 (OC.sub.2 H.sub.4).sub.2
CN
##STR88##
C.sub.2 H.sub.5
C.sub.2 H.sub.5
dull bluish
__________________________________________________________________________
red
TABLE 7
__________________________________________________________________________
##STR89##
Example No.
R.sup.1 R.sup.3
R.sup.4 Hue
__________________________________________________________________________
104 CH.sub.3 C.sub.2 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
red
105 CH.sub.3 CH.sub.3
C.sub.3 H.sub.6 OCH.sub.3
bluish red
106 CH.sub.3 C.sub.2 H.sub.4 OCH.sub.3
C.sub.3 H.sub.6 OCH.sub.3
bluish red
107 CH.sub.3 C.sub.2 H.sub.5
C.sub.2 H.sub.4 OC.sub.2 H.sub.5
bluish red
108 CH.sub.3 C.sub.3 H.sub.6 OCH.sub.3
C.sub.3 H.sub.6 OCH.sub.3
bluish red
109 CH.sub.3 C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
bluish red
110 C.sub.2 H.sub.5
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
bluish red
111 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
bluish red
112 CH.sub.3 OC.sub.2 H.sub.4
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
bluish red
113 C.sub.6 H.sub.5
C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
bluish red
114
##STR90## C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
bluish red
115
##STR91## C.sub.2 H.sub.5
C.sub.2 H.sub.5
bluish red
116
##STR92## C.sub.2 H.sub.5
C.sub.2 H.sub.4 OCH.sub.3
bluish red
117
##STR93## C.sub.2 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
bluish red
118 CH.sub.3 (OC.sub.2 H.sub.4).sub.2
C.sub.2 H.sub.5
C.sub.2 H.sub.5
bluish red
119 CH.sub.3 OC.sub.2 H.sub.4
C.sub. 2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OC.sub.6
H.sub.5 bluish red
120 CH.sub.3 C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OC.sub.6
H.sub.5 bluish red
121 CH.sub.3 OC.sub.2 H.sub.4
CH.sub.2 CH.sub.2OCH.sub.2 CH.sub.2
bluish red
122 CH.sub.3 (OC.sub.2 H.sub.4).sub.2
CH.sub.2 CH.sub.2OCH.sub.2 CH.sub.2
bluish red
123
##STR94## C.sub.2 H.sub.5
C.sub.3 H.sub.6 OC.sub.2 H.sub.4 OCH.sub.3
bluish red
__________________________________________________________________________
TABLE 8
__________________________________________________________________________
##STR95##
Example No.
R.sup.1 R.sup.2 R.sup.3 X n λmax
__________________________________________________________________________
[nm]
124 C.sub.2 H.sub.5 (OC.sub.2 H.sub.4).sub.2
C.sub.6 H.sub.5
C.sub.2 H.sub.5
CCN 0 554
125 C.sub.2 H.sub.5 (OC.sub.2 H.sub.4).sub.2
##STR96## C.sub.2 H.sub.5
CCN 0 581
126 C.sub.6 H.sub.5 CH.sub.2 OC.sub.2 H.sub.4
##STR97## C.sub.2 H.sub.5
CCN 0 581
127 C.sub.6 H.sub.5 (OC.sub.2 H.sub.4).sub.2
##STR98## C.sub.2 H.sub.5
CCN 0 580
128 C.sub.2 H.sub.5 OC.sub.2 H.sub.4
C.sub.6 H.sub.5
C.sub.2 H.sub.4 CN
CCN 1 544
129
##STR99## C.sub.6 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
CCN 0 552
130 CH.sub.3 OC.sub.2 H.sub.4
C.sub.6 H.sub.5
C.sub.2 H.sub.4 CN
CCN 1 544
131 C.sub.6 H.sub.5
C.sub.6 H.sub.5
C.sub.2 H.sub.4 CN
CCN 1 552
132 CH.sub.3
##STR100##
CH.sub.2 (C.sub.2 H.sub.4 O).sub.2 C.sub.6
H.sub.5 CCN 0 581
133 CH.sub.3 OC.sub.2 H.sub.4
##STR101##
C.sub.2 H.sub.4 OCH.sub.3
CCN 0 569
134 NCC.sub.2 H.sub.4 S
C.sub.6 H.sub.5
C.sub.2 H.sub.5
N 0 540
135 NCC.sub.2 H.sub.4 S
##STR102##
C.sub.2 H.sub.5
N 0 565
136 CN
##STR103##
CH.sub.2 (C.sub.2 H.sub.4 O).sub.2 C.sub.2
H.sub.5 CCN 0 578
137 NCC.sub.2 H.sub.4 S
C.sub.6 H.sub.5
C.sub.3 H.sub.6 OCH.sub.3
N 0 537
138 CN
##STR104##
CH.sub.2 (C.sub.2 H.sub.4 O).sub.2 C.sub.2
H.sub.5 CCN 0 595
139 CH.sub.3 OC.sub.2 H.sub.4
##STR105##
C.sub.3 H.sub.6 OCH.sub.3
CCN 0 528
140
##STR106##
##STR107##
CH.sub.2 (C.sub.2 H.sub.4 O).sub.2 CH.sub.3
CCN 0 592
141
##STR108##
##STR109##
CH.sub.2 (C.sub.2 H.sub.4 O).sub.2 CH.sub.3
CCN 0 588
142
##STR110##
##STR111##
CH.sub.2 (C.sub.2 H.sub.4 O).sub.3 CH.sub.3
CCN 0 581
143 Cl
##STR112##
CH.sub.2 (C.sub.2 H.sub.4 O).sub.2 CH.sub.3
CCN 0 592
144 Cl
##STR113##
CH.sub.2 (C.sub.2 H.sub.4 O).sub.2 C.sub.2
H.sub.5 CCN 0 592
145
##STR114##
##STR115##
C.sub.2 H.sub.4 OCH.sub.3
CCN 0 590
146
##STR116##
##STR117##
CH.sub.2 (C.sub.2 H.sub.4 O).sub.2 C.sub.2
H.sub.5 CCN 0 584
147
##STR118##
##STR119##
CH.sub.2 (C.sub.2 H.sub.4 O).sub.2 CH.sub.3
CCN 0 589
148
##STR120##
##STR121##
CH.sub.2 (C.sub.2 H.sub.4 O).sub.2 CH.sub.3
CCN 0 590
149
##STR122##
##STR123##
CH.sub.2 (C.sub.2 H.sub.4 O).sub.2 CH.sub.3
CCN 0 590
__________________________________________________________________________
Claims (4)
1. A thiazoleazo dye of the formula I ##STR124## wherein X is a radical C--R5, R5 being cyano, halogen, C1 -C4 -alkoxycarbonyl or thiocyanato,
R1 is phenyl, phenyl substituted C1 -C6 -alkoxy, sulfamoyl or C1 -C4 -mono- and dialkylsulfamoyl, C1 -C4 -mono and dialkylsulfamoyl where the alkyl chain is interrupted by an oxygen atom, furyl, thienyl, C1 -C4 -alkylthienyl, halothienyl or pyridyl,
R2 is phenyl, or thienyl,
R3 is C1 -C4 -alkyl, or C3 -C12 -alkyl whose alkyl chain is interrupted by from 1 to 4 oxygen atoms, and
R4 is C3 -C8 -alkyl whose alkyl chain is interrupted by from 1 to 4 oxygen atoms.
2. A thiazoleazo dye as claimed in claim 1, wherein R5 is cyano.
3. The thiazoleazo dye according to claim 1, of the formula ##STR125##
4. The thiazoleazo dye according to claim 1, of the formula ##STR126##
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19883833443 DE3833443A1 (en) | 1988-10-01 | 1988-10-01 | Thiazoleazo dyes having a diazo component of the isothiazole or thiadiazole series |
| DE3833443 | 1988-10-01 | ||
| DE3917258 | 1989-05-26 | ||
| DE19893917258 DE3917258A1 (en) | 1989-05-26 | 1989-05-26 | New isothiazole or thiadiazole azo thiazole dyestuff cpds. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US5132412A true US5132412A (en) | 1992-07-21 |
Family
ID=25872782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US07/407,748 Expired - Fee Related US5132412A (en) | 1988-10-01 | 1989-09-15 | Thiazoleazo dyes having a diazo component from the isothiazole or thiadiazole series |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5132412A (en) |
| EP (1) | EP0362708B1 (en) |
| JP (1) | JP2703366B2 (en) |
| DE (1) | DE58908357D1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002080152A2 (en) * | 2001-03-28 | 2002-10-10 | Bayer Aktiengesellschaft | Optical data carrier that contains a heterocyclic azo dye as the light-absorbing compound in the information layer |
| US20110117337A1 (en) * | 2008-07-11 | 2011-05-19 | Fujifilm Imaging Colorants Limited | Magenta Dyes and Inks for Use in Ink-Jet Printing |
| WO2011134685A1 (en) | 2010-04-29 | 2011-11-03 | Unilever Plc | Bis-heterocyclic azo dyes |
| WO2015173324A1 (en) * | 2014-05-16 | 2015-11-19 | L'oreal | Composition for dyeing keratin fibres, comprising an oxidation base and a particular heteroaryl coupler |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3770719A (en) * | 1967-12-07 | 1973-11-06 | Eastman Kodak Co | 2-amino-4-(azoyl)-azo-thiazole compounds and quaternary derivative thereof |
| DE2738885A1 (en) * | 1977-08-29 | 1979-03-22 | Basf Ag | AZO DYES |
| US4340537A (en) * | 1979-03-20 | 1982-07-20 | Basf Aktiengesellschaft | Monoazo dyes of the thiazole series having a heterocyclic substituent in the 4-position |
| DE3400364A1 (en) * | 1984-01-07 | 1985-07-18 | Basf Ag, 6700 Ludwigshafen | ISOTHIAZOLAZO DYES |
| DE3433958A1 (en) * | 1984-09-15 | 1986-03-27 | Basf Ag, 6700 Ludwigshafen | Isothiazole azo dyes |
| US4619992A (en) * | 1984-03-14 | 1986-10-28 | Basf Aktiengesellschaft | 3-(β-aminoethyl)-4-cyano-isothiazolylazo dyes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3816698A1 (en) * | 1988-05-17 | 1989-11-30 | Basf Ag | 5-AMINOISOTHIAZOLE AZO DYES |
-
1989
- 1989-09-15 US US07/407,748 patent/US5132412A/en not_active Expired - Fee Related
- 1989-09-29 DE DE58908357T patent/DE58908357D1/en not_active Expired - Lifetime
- 1989-09-29 EP EP89118047A patent/EP0362708B1/en not_active Expired - Lifetime
- 1989-09-29 JP JP1252552A patent/JP2703366B2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3770719A (en) * | 1967-12-07 | 1973-11-06 | Eastman Kodak Co | 2-amino-4-(azoyl)-azo-thiazole compounds and quaternary derivative thereof |
| DE2738885A1 (en) * | 1977-08-29 | 1979-03-22 | Basf Ag | AZO DYES |
| US4340537A (en) * | 1979-03-20 | 1982-07-20 | Basf Aktiengesellschaft | Monoazo dyes of the thiazole series having a heterocyclic substituent in the 4-position |
| DE3400364A1 (en) * | 1984-01-07 | 1985-07-18 | Basf Ag, 6700 Ludwigshafen | ISOTHIAZOLAZO DYES |
| US4619992A (en) * | 1984-03-14 | 1986-10-28 | Basf Aktiengesellschaft | 3-(β-aminoethyl)-4-cyano-isothiazolylazo dyes |
| DE3433958A1 (en) * | 1984-09-15 | 1986-03-27 | Basf Ag, 6700 Ludwigshafen | Isothiazole azo dyes |
Non-Patent Citations (3)
| Title |
|---|
| Derwent Abstract of JP 57 151653 (1981). * |
| Derwent Abstract of JP 57-151653 (1981). |
| Seybold et al., II, Chemical Abstracts, vol. 106, No. 19969b (1987). * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002080152A2 (en) * | 2001-03-28 | 2002-10-10 | Bayer Aktiengesellschaft | Optical data carrier that contains a heterocyclic azo dye as the light-absorbing compound in the information layer |
| WO2002080152A3 (en) * | 2001-03-28 | 2003-01-09 | Bayer Ag | Optical data carrier that contains a heterocyclic azo dye as the light-absorbing compound in the information layer |
| US20030006516A1 (en) * | 2001-03-28 | 2003-01-09 | Horst Berneth | Optical data storage medium containing a heterocyclic azo dye as the light-absorbing compound in the information layer |
| US20110117337A1 (en) * | 2008-07-11 | 2011-05-19 | Fujifilm Imaging Colorants Limited | Magenta Dyes and Inks for Use in Ink-Jet Printing |
| WO2011134685A1 (en) | 2010-04-29 | 2011-11-03 | Unilever Plc | Bis-heterocyclic azo dyes |
| WO2015173324A1 (en) * | 2014-05-16 | 2015-11-19 | L'oreal | Composition for dyeing keratin fibres, comprising an oxidation base and a particular heteroaryl coupler |
| FR3020945A1 (en) * | 2014-05-16 | 2015-11-20 | Oreal | COMPOSITION FOR COLORING KERATINIC FIBERS COMPRISING AN OXIDATION BASE AND A PARTICULAR HETEROARYL COUPLER |
| US9993409B2 (en) | 2014-05-16 | 2018-06-12 | L'oreal | Composition for dyeing keratin fibres, comprising an oxidation base and a particular heteroaryl coupler |
Also Published As
| Publication number | Publication date |
|---|---|
| DE58908357D1 (en) | 1994-10-20 |
| EP0362708A3 (en) | 1990-09-19 |
| EP0362708A2 (en) | 1990-04-11 |
| JPH02123166A (en) | 1990-05-10 |
| JP2703366B2 (en) | 1998-01-26 |
| EP0362708B1 (en) | 1994-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4843153A (en) | Azo dyes containing thienothiophene radicals as radicals of the diazo component | |
| US4667020A (en) | Aromatic disazo dyes and liquid-crystalline materials containing these dyes | |
| US5306815A (en) | Azo dyes with a coupling component of the quinoline series | |
| US4855413A (en) | Heterocyclic azo dyes containing cyanothiophene derivatives as diazo components and diaminopyridines as coupling components | |
| US4016152A (en) | Azo dye with a 2,6-diamino-5-cyano-or-5-carbamoyl-pyridine coupling component | |
| US5679800A (en) | 2-Amino-3,5,disubstituted-4-halothiophenes and processes for the synthesis thereof | |
| US4140684A (en) | Azo dyes having a 6-hydroxy-pyridone-2 coupling component radical having a substituent in the 1-position | |
| US5208325A (en) | Cationic 1,3,4-thiadiazole dyestuffs | |
| US5132412A (en) | Thiazoleazo dyes having a diazo component from the isothiazole or thiadiazole series | |
| US4994564A (en) | Azo dyes with a diazo component of the 3-amino thiophene series and a coupling component of the pyridine, pyridone or pyrazole series | |
| US3998803A (en) | 5-arylazo-6-hydroxy-pyridone-2 dyes containing an amino or substituted amino group | |
| US4960874A (en) | Isothiazolylazo dyes having aminophenyl and aminonaphthyl components | |
| US4542207A (en) | Heterocyclic monoazo dyes for polyester fibers | |
| US4315855A (en) | Monoazo disperse dyes containing a nitrophenyl group and a homophthalimide group | |
| US5466790A (en) | Azo dyes with an acetalized diazo component of the thiophene or thiazole series | |
| US4908437A (en) | Thien-2-one compounds with an alkylidene or imino group in the 5-position of the ring | |
| US4439362A (en) | Azo compounds having one or two 1,4-dioxanylmethoxycarbonyl-alkyl or -alkoxyalkyl groups | |
| US4960873A (en) | 3-pyridylisothiazoleazo compounds useful as disperse dyes | |
| US4465628A (en) | Azo dyes comprising a heterocyclic diazo component | |
| US5206375A (en) | Thiophene derivatives | |
| US4096145A (en) | Naphtholactam derivatives | |
| US4340537A (en) | Monoazo dyes of the thiazole series having a heterocyclic substituent in the 4-position | |
| US4419290A (en) | Diazo dyes having a coupler component attached to a sulfaphenyl-azo-phenyl-azo-radical | |
| US4694075A (en) | Bisazo compounds containing anthranilic acid and thiazole moieties | |
| US4283332A (en) | Azo dyes containing fluorinated carboxylic or sulphonic ester groups on the diazo moiety |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
| AS | Assignment |
Owner name: BASF AKTIENGESELLSCHAFT, GERMANY Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:HANSEN, GUENTER;LAMM, GUNTHER;REICHELT, HELMUT;AND OTHERS;REEL/FRAME:006106/0048 Effective date: 19890906 |
|
| FPAY | Fee payment |
Year of fee payment: 4 |
|
| REMI | Maintenance fee reminder mailed | ||
| LAPS | Lapse for failure to pay maintenance fees | ||
| FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20000721 |
|
| STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |